Mechanism andi method of marking



March 16, 1937. G. A. FRlESS. 2,074,21fi

MECHANISM AND METHOD OF MARKING, SQUEEGEEING,

AND DEVELOPING PRINTING CYLINDERS Filed July 12, 1955 6 Sheets-Sheet 1 RNVENT'OR.

March 1937- G: A. FRIESS MECHANISM AND METHOD OF MARKING,

AND DEVELOPING PRINTING CYLINDERS Filed July 12, 1955 ATTY.

INVENTOR.

March 16, 1937, G FR ss 2,074,218

MECBANI SM AND METHOD OF MARKING, SQUEEGEEING, AND DEVELOPING PRINTING CYLINDERS Filed July 12, L955 6 Sheets-Sheet 3 March 16, 1937. G. A. FRIESS 2,74,218

MECHANISM AND METHOD OF MARKING, SQUEEGEEING',

AND DEVELOPING PRINTING CYLINDERS Filed July 12, 1955 e speaks-shew 4 ENVENTOR.

'mj m w arch 16, G. A. FRIESS MECHANISM AND METHOD OF MARKING, SQUEEGEEING,

AND DEVELOPING PRINTING CYLINDERS 6 Sheets-Sheet 5 Filed July 12, 1955 INVENTOR.

March 16, 1937. G. A. FRIESS 2,074,213

MECHANISM AND METHOD OF MARKING, SQUEEGEEING,

AND DEVELOPING PRINTING CYLINDERS Filed July 12 1935 6 SheetsSheet 6 HNVE NTOR unit housing 48. By moving the manipulating handle 63 of the lever 58 inwardly towards the printing cylinder, the motor unit housing 48 is rocked to move the grooved pulley 5| from engagement with the rim of the index wheel 41, thus releasing the wheel for manual operation when desired. When the lever 58 is drawnoutwardly, the motor unit housing is rocked to move the grooved pulley 5| back into engagement with the rim 46 of the index wheel, and it is held firmly in engagement therewith by gravity, inasmuch as, in this position the center of gravity of the motor unit has passed to one side of a vertical plane passing through its pivotal stud 56. V

The supporting uprights 2| positioned at opposed ends of the machine frame have brackets 65 secured thereto, and these brackets support a composite carrier, which, in turn, movably supports a squeegee roller and water box or fluid containing receptacle to be hereinafter referred The carrier includes spaced inner arms 66 pivotally secured to the bracket 65, as indicated at 61, and the outer terminal of each arm 66 is pivotally secured to an offset bearing head 68, formed on the inner terminal of an outer arm 1|! by means of a stud II, which is threadedly secured to the bearing head 68 and extends through a sleeve or bushing 12 on which the pivotal bearing surface or bore 13 of the outer end of'the arms 66 is mounted, as best shown in Figure 9. The bushing 12 also rotatably supports an idler sprocket 15, to be hereinafter referred to, and a limited degree of turning motion of each outer arm ID relative to its inner arm 66 about its stud 1| is permitted by the pin and slot arrangement indicated at 14. Each bearing head 68 is provided with a shouldered recess I6 in axial alinement with the stud II for the reception of antifriction bearings 11 which rotatably support a pressure or squeegee roller I8, the function of which is to be hereinafter disclosed. A bracket arm 80 is secured to each outer arm 10, by screws or other securing devices BI, and the outer terminal of each bracket 80 is pivotally secured to a link 82, as indicated at 83, and the opposed terminal of each link is pivotally secured to the bracket 65, as indicated at 85. Thus it will be seen that as the inner arms 66 are moved about their pivots 61 the links 82 will serve to maintain the outer arms 10 in substantially horizontal position.

In order to raise and lower the composite carrier, which includes the inner arms 66, outer arms ill and links 82, a hand wheel 86 is rotatably mounted on a shaft or stud ill-secured to the upright 2| of the machine frame, and a sprocket 88 is secured to rotate with the hand wheel 86. This sprocket drives or rotates a larger sprocket 89 through a chain 90 which is trained over both sprockets, and the large sprocket 89 is keyed to a shaft 9|, which extends across the machine and is journaled in the upper terminals of the uprights 2|, as indicated at 92. Drive sprockets as are keyed at eachside of the ma,- chine to the shaft 9|, and lifting chains 95 having their outer terminals secured to the uprights 2|, as indicated at 96, are trained around the idler sprockets I5 and over the drive sprockets 93 to raise and lower the composite water box carrier, as will-be more fully disclosed hereinafter, and the chains 95 after passing over the drive sprockets 93 are suspended loosely at the side of the machine, as shown in Figure 2.

The outer terminal of each outer arm I is pro-.

neck I28, by means of screws or vided with a bearing aperture 91 in which a shaft 98 is rotatably supported, and this shaft extends across the machine, and, in turn, supports depending links or hangers III!) which are keyed or otherwise secured to the shaft 93. The outer or lower terminal of each link I6!) is pivotally secured to the frame IEII of a fluid containing receptacle or Water box I 82, as indicated at I03. A bar or supporting leg I65 is pivotally secured to each end of the water box I62, as indicated at I06, and the outer terminal of each leg has a roller I07 secured thereto, and each roller is received within a channeled supporting rail or track I08 depending from each arm T0. The intermediate portion of each leg or bar IE is provided with an elongated aperture or slot III] for the reception of a stud II I which is secured to and extends from the water box into the slot III] to permit a slight movement between the Water box I62 and the legs or bars I95 to permit the box to float, as will be more fully disclosed hereinafter. A fixed clutch member II 2 having a recess H3 is secured to the outer terminal of the arm .16, and a cooperating clutch member II5, having extensions H6, is keyed to the shaft 98 for sliding movement thereon, and this clutch member 5 is stressed or biased toward the clutch member H2 by a suitable spring Ill. The clutch mechanism is, operated by a shaft or rod H8, which is rotatably received within the bore or aperture I26 formed in the fixed clutch member II 2, and it is provided with a fiat face I2| which engages a fiat face or end of the movable clutch member II5. An operating handle I22 extends perpendicularly from the clutch rod H8, and by turning this handle through an arc, the flat face I2I of the fiat end of the movable clutch II 5 thus moving the extension N6 of the movable clutch from the recess ,3 of the fixed clutch, thereby permitting free rotation of the movable clutch H5, shaft 98, consequently permitting movement of the links I66 and suspended water box I02.

The water box or fluid containing receptacle I02 includes an elongated chamber I23, the length of which is substantially the length of the printing cylinder 28. A cover member I25 is secured to the water box and is provided with vent clutch rod H8 engages the apertures I26 preferably positioned at the end of c is slidably secured to the inclined portion of the cover member |25 which overhangs the outlet other securing devices I33, which extend through elongated slots I35 formed in the brass plate I32, and are secured to the inclined portion of the cover member l25. The outer terminals or throat portions of the lower bakelite plate HI and the upper sliding plate 532 are tapered to present a narrow outlet terminal to be received within the space formed between the squeegee roller and printing cylinder near the line on which these members engage each other, and the tapered outer terminals of these plates engage each other when the sliding plate is in its outermost position to close the outlet of the water box,'thereby presenting a valve arrangement capable of discharging a film of water in a line on the printing cylinder periphery when the sliding plate is moved to open position.

In order to slide the inclined plate I32 to open and closed positions, a manipulating handle or bar I36 is provided which is pivotally secured at its opposed terminals to bell crank levers I3'I which have their intermediate portion pivotally secured to a bracket I38, carried by the water box cover I25, by shoulder screws or other securing devices I48, and the terminals of the bell cranks I31 which are remote from the manipulating bar I36 are pivotally secured to channeled blocks I4I, as indicated at I42. The channel or elongated recess I43 of each block I42 fits over a rectangular bar I45 secured to the inclined valve plate I32 and extends longitudinally thereof, thereby permitting the blocks I4I to slide along the bar I45 when the manipulating handle I38 is moved to open and close the valve plate I32.

Water or other suitable fluid is conveyed to the water box through a flexible hose or conduit I45 which leads to an inlet valve or cock I4I that communicates with the chamber of the water box. Outlet couplings I48 are secured to the opposed ends of the water box and communicate with the chamber and also with flexible outlet conduits I58, and these outlet couplings communicate with the chamber of the water'box at a level above the point where the outlet apertures I38 communicate with the water box chamber and also above the lower terminal of the partition I2'I, for reasons to be hereinafter disclosed.

To permit the design or image to be etched into the cylinder while in the machine, a basin or tray I5I is supported by the machine frame I5 below the printing cylinder 28 and extends throughout the length of the cylinder. The tray I5I is lined with rubber or other acid resisting material I52, and a flexible drain hose or conduit I53 communicates with the lowest portion of the tray bottom and this hose normally leads to a drain opening I 8 formed in the drain basin H, or, if preferred, the hose may be bent to one side of the machine frame to convey the etching acids into a suitable receptacle, not shown, in the event the acids are to be preserved for subsequent use. A hood I55 is supported above the printing cylinder by the upright 2I, and this hood is provided with a suitable outlet flue I 58.

In the operation of the machine, a printing cylinder is conveyed to the machine by a crane or other suitable conveyance, not shown, and lowered onto the supporting rails 20, as indicated in dotted lines in Figure 1. It is then moved into the open hinged working bearings and the hinged portions 25 of the bearings are then closed to rotatably support the cylinder on the machine frame, and the hand wheel 32 manipulated to force the cylinder into correct longitudinal position. The suitable register marks are then inscribed on the peripheral portion of the cylinder, as hereinbefore disclosed and also disclosed in the Springstead Patent No. 1,832,255. The means for locking the marking stylus and components in desired registered position has also been hereinbefore referred to and disclosed in the Springstead patent and co-pending Harry Little application for Registering mechanism, filed March 7, 1935, Serial No. 9,865. The sensitized carbonsheet is also provided with suitable registering marks on the margin thereof, and when registering the carbon sheet S on the cylinder the leading edge of the sheet is brought into alinement with register marks on the cylinder and is secured in place on the peripheral portion of the cylinder by means of gummed tape or other suitable adhesive I55, as best'shown in Figure 10. During this part of the operatlon,'the Water box I82 is swung back away from the printing cylinder 28 by first releasing the clutch I I5 and gripping'the handle I04 of the water box to move the supporting rollers 'IO'I along the rail I08 and to swing the supporting links I about their supporting shaft 98, thus positioning the box as indicated in full lines in Figure 10. The roller I8 is raised slightly off the cylinder, thus permitting convenient access to the cylinder from both sides of the machine, and the cylinder is turned by hand and the entire sheet is pressed into contact with its peripheral portion. The rearmost end of the sheet is then also securedto the cylinder periphery by an adhesive and the cylinder rotated several times to insure that the sheet is correctly registered and in proper place. Now the cylinder is turned to bring the forward or leading edge of the sheet uppermost, and the squeegee roller I8 brought down to hold it in place. The rear edge of the sheet is then loosened from the cylinder and turned backward and upward and led over the roller I8, as shown in Figure 5, with the greater portions of the sheet thenhanging to the right of the roller.

In thesque'egeeing operation, the handle 63 is manipulated to swing the motor unit so that its grooved pulley 5I engages the rim 46 of the index wheel 4'! to thereby rotate the printing cylinder 28. The water box which has been filled, by manipulating the inlet cock I41, with water or other suitable fluid to the level permitted by the outlets I48, as shown in Figure 5, is moved by manipulating the hand wheel 86 thus causing the sprockets 88, 89 andchain 90 to rotate the drive sprocket 93, thus feeding out the supporting chain around the idler sprockets I5 to permit the composite carrier to lower the water box so that it may be moved along its guide rail I88 to the position indicated in Figure 5 with the tapered outlet terminals of the plates I3I and I32 positioned immediately adjacent the line on which the squeegee roller I8 engages the peripheral surface of the printing cylinder 28. The bar I36 is manipulated to slide the valve plate I32 away from the printing cylinder and squeegee roller to deposit a film of water on a line near the line where the squeegee roller engages the carbon sheet on the printing cylinder immediately the cylinder is rotated. After a suflicient quantity of water has been supplied to the peripheral portion of the cylinder the manipulating bar I36 is moved to slide the valve plate I32 to closed position, thus shutting off the supply of water or fluid. As the printing cylinder 28 and squeegee roller I8 continue to rotate, the water is crowded ahead of the contact line of these two rollers, thereby wetting the cylinder surface and the sensitive side of the carbon sheet as they come together and leaving the opposed or backing side entirely dry, and the pressure of the squeegee roller effects perfect contact of the entire sheet with the peripheral surface of the cylinder. It is necessary that the water supplied to the printing cylinder and carbon tissue be deposited on a line and in a uniform film freeof bubbles, and this is made possible by the provision of the partition 0 chine Patented Mar. 16 193? UNITED STATS PATSET OFFICE MECHANISM AND METHOD OF MARKING,

SQUEEGEEING, ENG CYLINDERS AND DEVELOPING PRINT- r Application July 12, I 24 Claims.

This invention relates to marking, squeegeeing and developing machines for photogravure or rotogravure printing cylinders, and particularly to the method and mechanism for applying and securing sensitized carbon tissue in accurately registered position 'upon the peripheral portion of the printing cylinder to'permit the design or image to be etched-thereon for photogravure printing. l i

Accurate] register isessential in rotary photogravure printing, especially multi-color rotary photogravure printing, wherein a number of separate impressions in different colors are usually made. A separate cylinder is employed for each color and the images that are etched on the several cylinders must be located very accurately in order to insure proper register in printing. In the preparation of the form cylinders for photogravure printing, the form for each page is printed on a sheet of sensitized tissue from which it is transferred to the surface ofthe form cylinder and subsequently etched into the cylinder .surface. Register marks are drawn on thetissue .sheet on the margin space, and a marking mais provided for marking circumferential and longitudinallineson the peripheral surface iQf the cylinder, and when the register marks on the tissue sheets are alined'with the marks on the cylinder surface, the tissue sheets are then correctly positioned to insure that the images are transferred therefrom to the printing cylinder surfaceto produce accuratelyregistered printing. After a portion of the sensitized carbon sheet or tissue has been alined with register marks on the printing cylinder, it is then necessary to secure the entire sheet in accurately registered positions upon the cylinder, and to treat the carbon tissue :sothat its usual supporting back may be stripped therefrom to leave the sensitized image bearing carbon tissue on the cylinder surface preparatory to' the usual etching operation. Therefore, an object of this invention is to provide improved means and method for securing sensitized tissue sheet in accurate register upon the printing surface of the cylinder and for treating the tissue sheet to permit the ready removal of its flexible backing.

Another object of this invention is to provide improved means and method for applying the sensitized tissue to the peripheral surface of the printing cylinder, and for conveying fluid along a line on the cylinder and tissue to aid in the application of the tissue to the cylinder andin thereadyremoval of the flexible backing from the carbontissue. i

1935, Serial No. 31,082 (01. 101-34) A further object of my present invention is to'provide means for holding a portion of a sen- Y sitized carbon tissue upon the peripheral portion of the printing cylinder and for supporting the remainder of the tissue away from the cylinder and for conveying fluid to the cylinder and to the inner side of the carbon tissue.

An additional object of this invention is to provide a machine for rotatably supporting a printing cylinder and incorporating means for clamping the leading edge of a carbon tissue upon the periphery of the cylinder, applying fluid in a line on the periphery of the cylinder and to the tissue, and for rolling the fluid treated tissue to secure it in registered position upon the peripheral portion of the cylinder.

Another object of the present invention is to provide a marking, squeegeeing and developing machine for rotogravure printing cylinders having a movably supported roller and fluid containing receptacle, the roller co-operating with the cylinder to grip the leading edge of a sensitized tissue sheet in accurate register upon the cylinder surface, also supports the sheet away from the cylinder and rotates in engagement with the tissue sheet and the cylinder to roll the sheet on the cylinder to secure it thereon in accurately registered position, and means for conveying fluid from the receptacle along a line on the surface of the printing cylinder near the line on which the roller engages the tissue positioned on the cylinder to thereby wet the tissue to aid its adhesion to the cylinder surface and to permit the ready removal of its flexible backing.

It is also an object of this invention to provide a marking, squeegeeing and developing machinefor rotogravure printing cylinders of generally improved construction, whereby the device will be simple, durable and inexpensive in construction, as well as convenient, practical, serviceable and efficient in its use.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts, and in the details of construction hereinafter described and claimed, it being understood that various changes in form, proportion, and minor details of construction may be made Within the scope of the claims without departing from the spirit or sacrificing any advantages of the invention.

For a complete disclosure of the invention, a detailed description of an improved marking, squeegeeing and developing machine for rotogravure printing cylinders will now be given in connection with the accompanying drawings forming a part of this specification, wherein:-

Figure 1 is an end elevation, parts broken away, of a combined marking, squeegeeing and developing machine having a photogravure printing cylinder rotatably mounted therein;

Figure 2 is an elevation taken in the same direction as Figure 1, but showing the upper portion of the machine;

Figure 3 is a plan view of the machine, parts appearing in section;

Figure 4 is a side elevation of the upper portion of the machine looking in the direction of arrow 4 of Figure 2, and depicting the carrier for the fluid receptacle;

Figure 5 is a fragmental vertical sectional'view taken through the fluid receptacle or water box on the line 5-5 of Figure 6, anddepicting the co- 7 operative relationship of the water box, squeegee roller and printing cylinder; Y

Figure 6 is a plan view of the fluid receptacle or 'water box and components of the carrier therefor, the view being taken in the direction of arrow 6 of Figure 5;

Figure 7 is a fragmental plan view looking in the direction indicated by arrow 1 of Figure 2, and depicting the water box, squeegee roller and composite carrier therefor;

Figure 8 is a fragmental elevation depicting the slidable stylus or marker head employed in the machine;

Figure 9 is a fragmental sectional view taken on the line 9--9 of Figure '7, and illustrating the carrier and supporting bearing for the squeegee roller;

Figure 10 is an enlarged fragmental elevation of the outer portion of the carrier for supporting the water box and squeegee roller,'and showing the cooperative relationship between the water box, squeegee roller and printing cylinder;

Figure 11 is a detailed plan View showing the registering or index plug employed in the machine;

Figure l2 is a transverse sectional view through the index plug taken on the line |2-|2 of Figure 11; and

Figure 13 is a fragmental transverse sectional view taken through the operating portion of the clutch operating lever.

Referring to the drawings, in which similar reference characters designate corresponding parts, there is depicted an improved marking, squeegeeing and developing machine for rotogravure printing cylinders and having marking and registering mechanism of the type disclosed in Patent No. 1,832,255, granted November 17, 1931, to J. F. Springstead, and the co-pending application of Harry Little, filed March 7, 1935, Serial No. 9,865. The present machine includes a frame I5, supported on a base I6 which is provided with a drain basin or receptacle ll, drain opening or outlet l8, and the frame I5 is provided with a printing cylinder supporting rail and a superstructure in the form of supporting uprights 2|. Bearing blocks 22 and 23 are supported at the opposed ends of the ma chine frame I5, and each bearing block is provided with a hinged section 25 to receive bearing members 26 supporting the shaft 21 of a rotogravure printing cylinder 28, and the outer or free end of each hinged section 25 is secured to the machine frame by suitable bolts or securing devices 30. The shaft 2'! of the printing cylinder is provided with an annular shoulder 3|,- and a manipulating'head 32 has a reduced stem which is threaded into a slide 33, and the slide engages the end of the cylinder shaft 21 to force the shoulder 3| against its bearing 26, thereby holding the cylinder against longitudinal motion but permitting free rotation thereof. This cylinder supporting mechanism is well understood by those skilled in the art and is disclosed in the Springstead Patent No. 1,832,255.

In order to place suitable register marks on the peripheral surface of the printing cylinder 28, a rail 35 is supported by the machine frame and extends longitudinally thereof and parallel to the axis of the printing cylinder 28. This rail slidably supports a marker head or slide 36, which, in turn, supports a marker or stylus 31 which yieldingly engages the periphery of the cylinder. The marker head or slide is held in predetermined positions along the rail 35 by a spring pressed registering pin or plunger 38 operably supported by a sleeve 40 carried by the marker head or slide 36, and the registering pin engages the selected registering or index plug 4| suitably positioned along the rail. A bracket 42 secured to the machine frame also supports a similar spring pressed registering pin 43 which engages registering plugs 45, and these plugs 45 are spaced in predetermined positions around the rim 46 of an index or hand wheel 41 which is detachably secured to the shaft 26 of the printing cylinder 28 by a suitable key or other securing device to prevent rotation of the hand wheel relative to the printing cylinder 28. When the registering pin 43 snaps into engagement with the selected index plug 45, the index wheel 41 and printing cylinder 28 are held in predetermined angular position. Longitudinal register marks are produced on the peripheral surface of the printing cylinder by locking the index or hand wheel 41 in selected angular position, and sliding the marker slide 36 along the rail 35, thereby causing the stylus to produce a mark along the peripheral surface of the cylinder parallel to the axis thereof. Circumferential registering marks are inscribed around the peripheral surface of the printing cylinder 28 by locking the marker slide 36 in selected position along the rail 35 and withdrawing the registering pin 43 from engagement with the index plug 45 carried by the index wheel to permit the rotation of the index wheel and cylinder 28. As the cylinder rotates the stylus 31 will produce circumferential marks on the peripheral portion thereof. This marking and registering mechanism is disclosed in the Springstead Patent No. 1,832,255, and the co-pending Little application Serial No. 9,865 and therefore it is thought it requires no further elucidation in this application.

In order to drive the cylinder 28 and index wheel 41 by power, a composite motor unit is provided which includes a housing 48 which operably supports a constant speed fractional horse power motor 50 which is geared to a grooved pulley 5| through a conventional reducing gear 52 also operably supported by the housing 48. The housing 48 is provided with a bearing 53 mounted on the reduced end 55 of a stud 56 screwed or otherwise secured to the machine frame, as indicated at 51, thereby pivotally supporting the motor unit for moving the pulley 5| to and from engagement with the index wheel 41. A lever 58 is pivotally secured to the machine frame |5,'as indicated at 60, and the opposed terminals of alink 6| are pivotally secured to the lever 58, and an arm 62 carried by the motor I21 which extends into the chamber of the Water box below the water level permitted by the position of the outlets I58 so that any air that may be present in the chamber escapes through the vent holes I26, thus causing the water which flows under the lower edge of the partition I21 through the series of outlet apertures I 30 and through the restricted opening formed by the terminals of the sliding brass plate I32 and the bakelite plate I 3| to be entirely free of air bubbles. By providing the brass plate I 32, corrosion is prevented, and the provision of the bakelite plate I 3|, provides means for engaging the peripheral surface of the printing cylinder without scratching or marking the surface. The water box is guided in its movement towards the printing cylinder and squeegee rollers by the rollers Iill rolling along its rail or track I83 until the outer terminal of the bakelite plate I3! engages the peripheral portion of the cylinder. Further movement of the water box towards the line of contact between the printing cylinder and squeegee roller will cause the bakelite plate to ride up on the peripheral surface of the printing cylinder, which floating action is permitted by the movement of the stud III in the slot IIII. Thus it is seen that this action of the water box permits the outlet terminals of the fixed'plate I3I and sliding plate I32 to be accurately positioned immediately adjacent the line of contact between the printing cylinder 28 and the squeegee roller I8, to accurately deposit a line of Water immediately adjacent the line of contact. After the carbon sheet has been rolled to perfect contact with the peripheral portion of the printing cylinder, the backing is stripped from the sensitive carbon tissue in the manner of removing backing from ordinary decalcomania, and then the cylinder is ready-for etching, which is carried on in the rubber lined tray I5I while the cylinder is still in the machine. The tray, being suitably lined and provided with a flexible drain permits the several solutions used during the etching and other treatment of the cylinder to be used in succession, and the cylinder and tray washed between operations, or the solution or solutions, if preferred, may be preserved for future use by conveying them into suitable receptacles as hereinbefore described.

During the cylinder etching or treating operation, the escaping fumes may be collected in the hood I55 and conveyed away through the outlet flue I56.

What I claim is:

1. In a device of the rotatably supporting a class described, means for printing cylinder, a roller mounted to coact with the printing cylinder and to engage a sensitized tissue positioned on the peripheral surface of the cylinder, and means for conveying confined fluid to and depositing it on the peripheral surface of the cylinder and the sensitized tissue along a line near the line on which the roller engages the tissue on the cylinder.

2. In a device of the class described, means for rotatably supporting a printing cylinder, a roller mounted to coact with the printing cylinder and to engage a sensitized tissue positioned on the peripheral surface of the cylinder, and movablemeans for depositing fluid on the peripheral surface of the cylinder and the side of the sensitized tissue which is disposed towards the. cylinder on a line near the line on which the roller engages the tissue on the cylinder.

3. In a device of the class described, means for rotatably supporting a printing cylinder, a roller mounted to coact with the printing cylinder and to engage a sensitized tissue positioned on the peripheral surface of the cylinder, and movable means for depositing confined fluid in a line on the peripheral portion of the cylinder and on the tissue near a point where a radial line passing through the axes of the cylinder and roller intersect the peripheral portion of the cylinder.

4. In a device of the class described, means for rotatably supporting a printing cylinder, a roller mounted to coact with the printing cylinder and to engage a sensitized tissue positioned on the peripheral surface of the cylinder, a movable fluid containing receptacle, and means for conveying a film of fluid from the receptacle to the peripheral surface of the cylinder and the sensitized tissue along a line near the line on which the roller engages the tissue on the cylinder.

5. In a device of the class described, means for rotatably supporting a printing cylinder, a roller mounted to coact with the printing cylinder and to engage a sensitized tissue positioned on the peripheral surface of the cylinder, a fluid containing receptacle, means for movably supporting the receptacle and roller to permit movement thereof to and from the cylinder, and means for conveying a film of fluid from the receptacle directly to the peripheral surface of the cylinder and the sensitized tissue along a line near the line on which the roller engages the tissue on the cylinder.

6. In a device of the rotatably supporting a mounted to coact with class described, means for printing cylinder, a roller the printing cylinder and to engage a sensitized tissue positioned on the peripheral surface of the cylinder, a movable fluid containing receptacle, a converging throat extending from the receptacle and constructed and arranged to convey a film of fluid from the receptacle directly to the peripheral surface of the cylinder and the sensitized tissue along a line near the line on which the roller engages the tissue on the cylinder.

7. In a device of the class described, means for rotatably supporting a printing cylinder, a roller mounted to coact with the printing cylinder and to engage a sensitized tissue positioned on the peripheral surface of the cylinder, movable means for depositing a film of fluid on the peripheral surface of the cylinder and the sensitized tissue along a line near the line on which the roller engages the tissue on the cylinder, and manually operable supply of fluid to the cylinder and the tissue.

8. In a device of the class described, means for rotatably supporting a printing cylinder, a roller mounted to coact with the printing cylinder and to engage a sensitized tissue positioned on the peripheral surface of the cylinder, a fluid containing receptacle, a converging throat extending from the receptacle and constructed and arranged to convey a film of fluid from the receptacle directly to the peripheral surface of the cylinder and the sensitized tissue along a line near. the line on which the roller engages the tissue on the cylinder, and means for regulating the quantity of fluid supplied through the throat to the cylinder and tissue.

9. In a device of the class described, means for rotatably supporting a printing cylinder, a roller mounted to coact with the printing cylinder and to engage a sensitized tissue positioned on the peripheral surface of the cylinder, a movmeans for controlling the able fluid containing receptacle, a converging throat extending from the receptacle and constructed and arranged to convey a film of fluid from the receptacle directly to the peripheral surface of the cylinder and the sensitized tissue along a line near the line on which the roller engages the tissue on the cylinder, and manually operable means for regulating the quantity of fluid supplied through the throat to the cylinder and tissue.

10. In a device of the class described, a frame, means for rotatably supporting a printing cylinder on the frame, a roller mounted to coact with the printing cylinder and to engage a sensitized tissue positioned on the peripheral surface of the cylinder, a movable receptacle, means supported by the frame for movably supporting the receptacle and roller to permit them to be moved towards and away from the cylinder, means for conveying fluid to the receptacle, and

means for conveying fluid from the receptacle directly to the peripheral surface of the cylinder and the sensitized tissue along a line near the line on which the roller engages the tissue on the cylinder, and means for controlling the supply of fluid from the receptacle to the cylinder and the tissue.

11. In a device of the class described, a frame, means for rotatably supporting a printing cylinder on the frame, a roller to coact with the printing cylinder and to engage a sensitized tissue positioned on the peripheral surface of the cylinder, a movable receptacle, a carrier supported by the frame to support the receptacle and roller for movement towards and away from the cylinder, means for conveying fluid to the receptacle, and means for depositing fluid from the receptacle directly on the peripheral portion of the cylinder and on the tissue.

12. In a device of the class described, a frame, means for rotatably supporting a printing cylinder on the frame, a roller to coact with the printing cylinder and to engage a sensitized tissue positioned on the peripheral surfaceof the cylinder, a movable receptacle, a carrier pivotally secured to the frame to support the receptacle and roller for movement towards and away from the cylinder, means for conveying fluid to the receptacle, and means for depositing fluid from the I receptacle directly on the peripheral portion of the cylinder and on the tissue.

13. In a device of the class described, aframe, means for rotatably supporting a printing cylinder on the frame, a roller to coact with the print- ,ing cylinder and to engage a sensitized tissue positioned on the peripheral surface of the cylinder, a movable receptacle, a carrier pivotally secured to the frame to support the receptacle and roller for movement towards and away from the cylinder, manually operable means for moving the carrier to thereby move the receptacle and roller towards and away from the cylinder, and means for conveying fluid from the receptacle directly to the peripheral portion of the cylinder and to the tissue.

14. In adevice of the class described, a frame, meansfor rotatably supporting a printing cylinder on the frame, a movable receptacle for depositing fluid on the cylinder, a composite carrier supported by the frame and having separate components to support the receptacle for movement towards and away from the cylinder and in positions determined with relation to the cylinder.

15. In a device of the class described, a frame,

means forrotatably supporting a printing cylinder on the frame, a movable receptacle for depositing fluid on the cylinder, a carrier supported by the frame to support the receptacle for movement towards and away from the cylinder, and separate supporting means for the receptacle carried by the carrier to permit movement of the receptacle relative to the carrier.

16. In a device of the class described, a frame, means for rotatably supporting a printing cylinder on the frame, a roller to coact with the printing cylinder and to engage a sensitized tissue positioned on the peripheral surface of the cylinder, a movable receptacle, a carrier pivotally secured to the frame to support the receptacle and roller for movement towards and away from the cylinder, manually operable means for moving the carrier to thereby move the receptacle and roller towards and away from the cylinder, supporting means for the receptacle carried by the carrier and constructed and arranged to permit movement of the receptacle relative to the carrier, and means for conveying fluid from the receptacle directly to the peripheral portion of the cylinder and to the tissue.

17. In a device of the class described, a frame, means for rotatably supporting a printing cylinder on the frame, a roller to coact with the printing cylinder and to engage a sensitized tissue positioned on the peripheral surface of the cyl- 1 inder, a movable receptacle, a carrier pivotally secured to the frame to support the receptacle and roller for movement towards and away from the cylinder, manually operable means for moving the carrier to thereby move the receptacle and roller towards and away from the cylinder, supporting means for the receptacle carried by the carrier and constructed and arranged to permit movement of the receptacle relative to the carrier, means for conveying fluid from thereceptacle directly to the peripheral portion of the cylinder and to the tissue, and means for permitting floating movement of the receptacle to its supporting means.

18. In a device of the class described, a frame,

a roller to coact with the printing cylinder and to engage a sensitized tissue positioned on the peripheral surface of the cylinder, a movable receptacle, a carrier pivotally secured to the frame to support the receptacle and roller for movement towards and away from the cylinder, means for moving the carrier to move the roller and receptacle towards and away from the cylinder, means for supplying fluid to the receptacle, means for depositing fluid from the receptacle on the peripheral portion of the cylinder and on the tissue, and supporting means interposed between the carrier and receptacle and constructed and arranged to permit floating movement of the receptacle relative to the carrier so that the receptacle may position itself on the cylinder.

19. In a device of the class described, a frame, means for rotatably supporting a printing cylinder on the frame, a roller coacting with the printing cylinder to engage a sensitized tissue positioned on the peripheral surface of the cylinder, a movable fluid containing receptacle, a carrier supporting the roller and receptacle and having separate components pivotally secured to the frame and to each other to move the roller and 7 rier, separate supporting members pivotally secured to the carrier and receptacle to aid in supporting the receptacle, the receptacle being maintained in definite relation to the cylinder on the carrier when the carrier moves the receptacle directly and roller towards and away from the cylinder, means for permitting floating move ment of the receptacle on its supporting means, and means for conveying fluid from the receptacle to the peripheral portion of the cylinder and to the tissue along a line near the line on which the roller engages the tissue on the cylinder.

20. In a device of the class described, a frame, means for rotatably supporting a printing cylinder on the frame, a roller coacting with the printing cylinder to engage a sensitized tissue positioned on the peripheral surface of the cylinder, a movable fluid containing receptacle, a carrier supporting the roller and receptacle and having separate components pivotally secured to the frame and to each other to move the roller and receptacle towards and away from the cylinder, manually operable means for moving the carrier towards and away from the cylinder, a

a rail carried by one of the components of the carrier, means secured to the receptacle for engaging the rail to support and permit sliding movement of the receptacle relative to the carrier, separate supporting members pivotally secured to the carrier and receptacle to aid in supporting the receptacle, the receptacle being maintained in definite relation to the cylinder on the carrier when the carrier moves the receptacle and roller towards and away from the cylinder, means for permitting floating movement of the receptacle relative to its supporting means, and means for conveying fluid from the receptacle to the peripheral portion of the cylinder and to the tissue.

21.The method of securing backed sensitized tissue to a printing cylinder, which consists in securing the leading edge of the tissue and backing sheet in registered position on the peripheral surface of the cylinder, gripping the leading edge of the tissue and backing sheet between the cylinder and a roller, depositing a determined quantity of fluid on the peripheral surface of the cylinder and tissue along a line near the line on which the roller engages the tissue on the cylinder, and rotating the cylinder and roller to force the fluid ahead of the line on which the cylinder and roller engage the tissue thereby wetting one side of the tissue and pressing it on the peripheral surface of the cylinder to cause it to adhere thereto, and removing the backing sheet from the tissue thereby leaving the tissue in registered position on the peripheral surface of the cylinder.

22. The method of securing backed sensitized tissue to a printing cylinder, which consists in securing the leading edge of the tissue and backing sheet in registered position on the peripheral surface of the cylinder, gripping the leading edge of the tissue and backing sheet between the cylinder and a roller, removing the remainder of the tissue and backing sheet from the cylinder and supporting it on the roller, depositing fluid in a line on the peripheral surface of the cylinder and tissue near the line on which the roller engages the tissue on the cylinder, and rotating the cylinder and roller to force the fluid ahead of the line on which the cylinder and roller engage the tissue thereby wetting one side of the tissue and pressing it on the peripheral surface of the cylinder to cause it to adhere thereto, and removing the bacldng sheet from the tissue thereby leaving the tissue in registered position on the peripheral surface of the cylinder.

23. In a device of the class described, a frame, means for rotatably supporting a printing cylinder on the frame, means coacting with the cylinder to secure a, sensitized tissue to the cylinder during the rotation of the cylinder, and a motor drive unit for rotating the cylinder, the entire motor unit being manually movable to and from cylinder operating positions.

24. In a device of the class described, a frame, means for rotatably supporting a printing cylinder on the frame, means coacting with the cylinder to secure a sensitized tissue to the cylinder during the rotation of the cylinder, manually operable means for rotating the cylinder, and power operating means bodily movable to operably engage the manually operable means to rotate the cylinder.

GUSTAVE A. FRIESS. 

